Template:Selected anniversaries/May 6

• 

  Turkish delight found at scene of crime against mathematical constants, crime team of Forbidden Ratio and Gnotilus suspected.

• 

  Egg Tooth Neighborhood Association votes to prohibit both Forbidden Ratio and Gnotilus from conducting business (including crime) in New Minneapolis.

1769 – Jean Nicolas Pierre Hachette, French mathematician and academic (d. 1834)

1872 – Willem de Sitter, Dutch mathematician, physicist, and astronomer (d. 1934)

1895 – Júlio César de Mello e Souza, Brazilian mathematician and author (d. 1974)

1906 – André Weil, French mathematician and academic (d. 1998)

1951 – Élie Cartan, French mathematician and physicist (b. 1869)

1963 – Theodore von Kármán, Hungarian-American mathematician, physicist, and engineer (b. 1881)

1949 – EDSAC, the first practical electronic digital stored-program computer, runs its first operation.

1840 – The Penny Black postage stamp becomes valid for use in the United Kingdom of Great Britain and Ireland

1844 – The Glaciarium, the world's first mechanically frozen ice rink, opens.